<!doctype html>


<html>
<head>
  <link rel="shortcut icon" href="static/images/favicon.ico" type="image/x-icon">
  <title>WebChannelTransport (Closure Library API Documentation - JavaScript)</title>
  <link rel="stylesheet" href="static/css/base.css">
  <link rel="stylesheet" href="static/css/doc.css">
  <link rel="stylesheet" href="static/css/sidetree.css">
  <link rel="stylesheet" href="static/css/prettify.css">

  <script>
     var _staticFilePath = "static/";
     var _typeTreeName = "goog";
     var _fileTreeName = "Source";
  </script>

  <script src="static/js/doc.js">
  </script>

  <script type="text/javascript" src="//www.google.com/jsapi"></script>
  <script type="text/javascript">
     google.load("visualization", "1", {packages:["orgchart"]});
     var _loadingVisualizations = true;
  </script>

  <meta charset="utf8">
</head>

<body onload="grokdoc.onLoad();">

<div id="header">
  <div class="g-section g-tpl-50-50 g-split">
    <div class="g-unit g-first">
      <a id="logo" href="index.html">Closure Library API Documentation</a>
    </div>

    <div class="g-unit">
      <div class="g-c">
        <strong>Go to class or file:</strong>
        <input type="text" id="ac">
      </div>
    </div>
  </div>
</div>





<div class="colmask rightmenu">
<div class="colleft">
    <div class="col1">
      <!-- Column 1 start -->

<div id="title">
        <span class="fn">net.WebChannelTransport</span>
</div>

<div class="g-section g-tpl-75-25">
  <div class="g-unit g-first" id="description">
    A WebChannelTransport instance represents a shared context of logical
connectivity between a browser client and a remote origin.

Over a single WebChannelTransport instance, multiple WebChannels may be
created against different URLs, which may all share the same
underlying connectivity (i.e. TCP connection) whenever possible.

When multi-domains are supported, such as CORS, multiple origins may be
supported over a single WebChannelTransport instance at the same time.

Sharing between different window contexts such as tabs is not addressed
by WebChannelTransport. Applications may choose HTML5 shared workers
or other techniques to access the same transport instance
across different window contexts.


  </div>


        <div class="g-unit" id="useful-links">
          <div class="title">Useful links</div>
          <ol>
            <li><a href="local_closure_goog_labs_net_webchanneltransport.js.source.html"><span class='source-code-link'>Source Code</span></a></li>
            <li><a href="http://code.google.com/p/closure-library/source/browse/local/closure/goog/labs/net/webchanneltransport.js">Git</a></li>
          </ol>
        </div>
</div>






<h2 class="g-first">Inheritance</h2>
<div class='gviz-org-chart-container goog-inline-block'>
<table class='gviz-org-chart' style='display:none'>
  <tr><td>goog.net.WebChannelTransport</td><td></td></tr>
</table>
</div>
<div class='gviz-org-chart-container goog-inline-block'>
<table class='gviz-org-chart' style='display:none'>
</table>
</div>




  <h2>Constructor</h2>
      <div class="fn-constructor">
    goog.net.WebChannelTransport(<span></span>)
  </div>



<h2>Instance Methods</h2>


  <div class="legend">
        <span class="key publickey"></span><span>Public</span>
        <span class="key protectedkey"></span><span>Protected</span>
        <span class="key privatekey"></span><span>Private</span>
  </div>







<div>
       <div class="desc">
         Defined in
         <span class="fn-name">
            <a href="interface_goog_net_WebChannelTransport.html">
              goog.net.WebChannelTransport
            </a>
         </span>
       </div>






<div class="section">
  <table class="horiz-rule">


     <tr class="even entry public">
       <td class="access"></td>






  <td>
    <a name="goog.net.WebChannelTransport.prototype.createWebChannel"></a>


     <div class="arg">
       <img align="left" src="static/images/blank.gif">

        <span class="entryName">createWebChannel<span class="args">(<span class="arg">url</span>,&nbsp;<span class="arg">opt_options</span>)</span>
        </span>
        &#8658; <span>!</span><span class="type"><a href="interface_goog_net_WebChannel.html">goog.net.WebChannel</a></span>
      </div>


     <div class="entryOverview">
       Create a new WebChannel instance.

The new WebChannel is to be opened against the server-side resource
as specified by the given URL. See <code> goog.net.WebChannel</code> for detailed
semantics.


     </div>


    <! -- Method details -->
    <div class="entryDetails">

      <div class="detailsSection">
        <b>Arguments: </b>






<table class="horiz-rule">
     
   <tr class="even">
     <td>
        <span class="entryName">url</span>
        : <span class="type"><a href="https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Global_Objects/String">string</a></span>
        <div class="entryOverview">The URL path for the new WebChannel instance.</div>
     </td>
   </tr>
     
   <tr class="odd">
     <td>
        <span class="entryName">opt_options</span>
        : <span>!</span><span class="type">goog.net.WebChannel.Options=</span>
        <div class="entryOverview">Configuration for the
    new WebChannel instance. The configuration object is reusable after
    the new channel instance is created.</div>
     </td>
   </tr>
  </table>
      </div>
   
      <div class="detailsSection">
        <b>Returns:</b>&nbsp;<span>!</span><span class="type"><a href="interface_goog_net_WebChannel.html">goog.net.WebChannel</a></span>&nbsp;
            the newly created WebChannel instance.
      </div>
  
    </div>
   
  </td>


  <td class="view-code">
     <a href="local_closure_goog_labs_net_webchanneltransport.js.source.html#line75">code &raquo;</a>
  </td>
     </tr>


  </table>
</div>
</div>




















<div class="section">
  <table class="horiz-rule">


  </table>
</div>



<h2>Static Properties</h2>






<div class="section">
  <table class="horiz-rule">


     <tr class="even entry private">
       <td class="access"></td>





  <a name="goog.net.WebChannelTransport.LATEST_VERSION_"></a>

  <td>


     <div class="arg">
        <img align="left" src="static/images/blank.gif">

        <span class="entryNamespace">goog.net.WebChannelTransport.</span><span class="entryName">LATEST_VERSION_</span>
        : 
     </div>


     <div class="entryOverview">
       The latest protocol version. The protocol version is requested
from the server which is responsible for terminating the underlying
wire protocols.


     </div>

  </td>


  <td class="view-code">
     <a href="local_closure_goog_labs_net_webchanneltransport.js.source.html#line59">Code &raquo;</a>
  </td>
     </tr>


  </table>
</div>









<div class="section">
  <table class="horiz-rule">


  </table>
</div>
      <!-- Column 1 end -->
    </div>

        <div class="col2">
          <!-- Column 2 start -->
          <div class="col2-c">
            <h2 id="ref-head">Package net</h2>
            <div id="localView"></div>
          </div>

          <div class="col2-c">
            <h2 id="ref-head">Package Reference</h2>
            <div id="sideTypeIndex" rootPath="" current="net.WebChannelTransport"></div>
          </div>
          <!-- Column 2 end -->
        </div>
</div>
</div>

</body>
</html>
